:root {
  color-scheme: dark;

  /* Palette */
  --canvas: #0a0b0e;
  --surface: #13151a;
  --surface-2: #1a1d24;
  --hairline: #2a2e38;
  --text: #f4f5f7;
  --muted: #a8acb8;
  --accent: #d4ff3a;
  --accent-ink: #0a0b0e;

  /* Type scale */
  --step--2: 0.75rem;
  --step--1: 0.875rem;
  --step-0: 1rem;
  --step-1: 1.125rem;
  --step-2: 1.5rem;
  --step-3: 2.25rem;
  --step-4: 4rem;
  --step-5: 6rem;

  /* Spacing scale */
  --space-1: 0.25rem;
  --space-2: 0.5rem;
  --space-3: 0.75rem;
  --space-4: 1rem;
  --space-5: 1.5rem;
  --space-6: 2rem;
  --space-7: 3rem;
  --space-8: 5rem;
  --space-9: 8rem;

  /* Radius + motion + focus */
  --radius-1: 2px;
  --radius-2: 4px;
  --radius-3: 8px;
  --ease-athletic: cubic-bezier(0.2, 0.8, 0.2, 1);
  --duration-fast: 180ms;
  --duration-base: 200ms;
  --focus-ring: 2px solid var(--accent);
  --focus-offset: 2px;

  --max-width: 72rem;
  --prose-width: 38rem;
}

@media (prefers-color-scheme: light) {
  :root {
    color-scheme: light;
    --canvas: #fafaf8;
    --surface: #ffffff;
    --surface-2: #f2f2ef;
    --hairline: #e3e4e8;
    --text: #0a0b0e;
    --muted: #5a5d68;
    --accent: #5b7b00;
    --accent-ink: #ffffff;
  }
}

@font-face {
  font-family: "InterVar";
  src: url("/assets/fonts/inter-variable.woff2") format("woff2");
  font-weight: 100 900;
  font-style: normal;
  font-display: swap;
}

@font-face {
  font-family: "BebasNeue";
  src: url("/assets/fonts/bebas-neue.woff2") format("woff2");
  font-weight: 400;
  font-style: normal;
  font-display: swap;
}

*,
*::before,
*::after {
  box-sizing: border-box;
}

html,
body {
  margin: 0;
  padding: 0;
}

body {
  min-height: 100vh;
  background: var(--canvas);
  color: var(--text);
  font-family: "InterVar", "Inter", "Segoe UI", Roboto, Arial, sans-serif;
  font-size: var(--step-0);
  line-height: 1.65;
}

.skip-link {
  position: absolute;
  top: -120px;
  left: var(--space-4);
  padding: var(--space-3) var(--space-4);
  background: var(--accent);
  color: var(--accent-ink);
  text-decoration: none;
  border-radius: var(--radius-2);
}

.skip-link:focus-visible {
  top: var(--space-4);
  z-index: 20;
}

a {
  color: var(--text);
  text-decoration: none;
  background-image: linear-gradient(currentColor, currentColor);
  background-repeat: no-repeat;
  background-position: 0 100%;
  background-size: 0 1px;
}

a:hover,
a:focus-visible {
  background-size: 100% 1px;
}

a:focus-visible,
button:focus-visible,
input:focus-visible,
textarea:focus-visible {
  outline: var(--focus-ring);
  outline-offset: var(--focus-offset);
}

img {
  display: block;
  max-width: 100%;
  height: auto;
}

svg {
  display: block;
  max-width: 100%;
}

.content img,
.article-shell img {
  max-width: 100%;
  height: auto;
}

.site-shell {
  width: min(100% - 2rem, var(--max-width));
  margin: 0 auto;
  padding: var(--space-5) 0 var(--space-8);
}

.topbar {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: var(--space-5);
  margin-bottom: var(--space-6);
  border-bottom: 1px solid var(--hairline);
  padding-bottom: var(--space-4);
}

.brand-mark {
  width: 2.25rem;
  height: 2.25rem;
  max-width: 2.25rem;
  max-height: 2.25rem;
  flex-shrink: 0;
  object-fit: contain;
}

.brand-link {
  display: inline-flex;
  align-items: center;
  gap: var(--space-3);
  min-height: 44px;
  font-family: "BebasNeue", Impact, sans-serif;
  letter-spacing: 0.02em;
  font-size: 1.5rem;
}

.primary-nav ul {
  margin: 0;
  padding: 0;
  list-style: none;
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-2) var(--space-5);
}

.primary-nav a {
  min-height: 44px;
  display: inline-flex;
  align-items: center;
  color: var(--muted);
  text-transform: uppercase;
  letter-spacing: 0.08em;
  font-size: var(--step--1);
}

.primary-nav a[aria-current="page"] {
  color: var(--accent);
}

.eyebrow {
  margin: 0 0 var(--space-3);
  font-family: ui-monospace, "SF Mono", Menlo, Consolas, monospace;
  font-size: var(--step--2);
  text-transform: uppercase;
  letter-spacing: 0.14em;
  color: var(--muted);
}

.hero {
  position: relative;
  background: radial-gradient(circle at 20% 20%, rgba(212, 255, 58, 0.1), transparent 42%),
    linear-gradient(var(--surface), var(--surface));
  border: 1px solid var(--hairline);
  border-radius: var(--radius-3);
  padding: var(--space-7) var(--space-6);
  margin-bottom: var(--space-6);
}

.hero::before {
  content: "";
  position: absolute;
  inset: 0;
  background-image: radial-gradient(circle, rgba(168, 172, 184, 0.22) 0.6px, transparent 0.6px);
  background-size: 18px 18px;
  opacity: 0.35;
  pointer-events: none;
}

.hero > * {
  position: relative;
  z-index: 1;
}

.hero h1 {
  margin: 0;
  font-family: "BebasNeue", Impact, sans-serif;
  font-weight: 400;
  line-height: 0.95;
  letter-spacing: -0.01em;
  font-size: clamp(3rem, 9vw, 6rem);
}

.hero p {
  margin: var(--space-4) 0 0;
  max-width: 58ch;
  color: var(--muted);
  font-size: var(--step-1);
}

.hero-actions {
  margin-top: var(--space-5);
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-4);
  align-items: center;
}

.button-primary {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 44px;
  padding: var(--space-3) var(--space-5);
  border: 1px solid var(--accent);
  background: var(--accent);
  color: var(--accent-ink);
  border-radius: var(--radius-2);
  font-weight: 600;
}

.text-link {
  min-height: 44px;
  display: inline-flex;
  align-items: center;
  color: var(--text);
}

.panel {
  background: var(--surface);
  border: 1px solid var(--hairline);
  border-radius: var(--radius-3);
  padding: var(--space-6);
}

.bento-grid {
  display: grid;
  gap: var(--space-4);
  margin-bottom: var(--space-6);
}

.bento-card {
  background: var(--surface-2);
  border: 1px solid var(--hairline);
  border-radius: var(--radius-3);
  padding: var(--space-5);
}

.bento-card h2,
.bento-card h3 {
  margin: var(--space-3) 0 var(--space-2);
  font-family: "BebasNeue", Impact, sans-serif;
  font-weight: 400;
  letter-spacing: 0.02em;
  font-size: clamp(2rem, 3.2vw, 2.8rem);
  line-height: 0.95;
}

.bento-card p {
  margin: 0;
  color: var(--muted);
}

.icon-wrap {
  width: 24px;
  height: 24px;
  max-width: 24px;
  max-height: 24px;
  flex-shrink: 0;
  color: var(--accent);
}

.stat-strip {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  background: var(--surface);
  border: 1px solid var(--hairline);
  border-radius: var(--radius-2);
  overflow: hidden;
  margin-bottom: var(--space-6);
}

.stat-strip p {
  margin: 0;
  text-align: center;
  padding: var(--space-4);
  font-family: ui-monospace, "SF Mono", Menlo, Consolas, monospace;
  font-size: var(--step--1);
  letter-spacing: 0.08em;
  text-transform: uppercase;
}

.stat-strip p + p {
  border-left: 1px solid var(--hairline);
}

.content h1 {
  margin: 0 0 var(--space-3);
  font-family: "BebasNeue", Impact, sans-serif;
  font-weight: 400;
  line-height: 0.95;
  letter-spacing: 0.01em;
  font-size: clamp(2.75rem, 6vw, 4.5rem);
}

.content p {
  margin: 0 0 var(--space-4);
}

.content .lead {
  font-size: var(--step-1);
  color: var(--muted);
}

.article-grid {
  display: grid;
  gap: var(--space-4);
}

.article-card {
  background: var(--surface-2);
  border: 1px solid var(--hairline);
  border-radius: var(--radius-3);
  padding: var(--space-5);
}

.article-card time {
  display: block;
  margin-bottom: var(--space-2);
  color: var(--muted);
  font-family: ui-monospace, "SF Mono", Menlo, Consolas, monospace;
  font-size: var(--step--2);
  letter-spacing: 0.08em;
  text-transform: uppercase;
}

.article-card h2 {
  margin: 0 0 var(--space-2);
  font-family: "BebasNeue", Impact, sans-serif;
  font-weight: 400;
  line-height: 0.95;
  letter-spacing: 0.01em;
  font-size: clamp(2rem, 4.5vw, 3rem);
}

.article-card p {
  margin: 0 0 var(--space-4);
  color: var(--muted);
}

.article-shell {
  max-width: var(--prose-width);
}

.article-meta {
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-3);
  margin: var(--space-4) 0 var(--space-5);
  padding: 0 0 var(--space-4);
  border-bottom: 1px solid var(--hairline);
  color: var(--muted);
  font-family: ui-monospace, "SF Mono", Menlo, Consolas, monospace;
  font-size: var(--step--1);
  text-transform: uppercase;
  letter-spacing: 0.08em;
}

.article-shell p:first-of-type::first-letter {
  float: left;
  font-family: "BebasNeue", Impact, sans-serif;
  font-size: 3.8rem;
  line-height: 0.8;
  margin-right: var(--space-2);
  color: var(--accent);
}

.site-footer {
  border-top: 1px solid var(--hairline);
  padding-top: var(--space-6);
  margin-top: var(--space-7);
  display: grid;
  gap: var(--space-5);
  color: var(--muted);
}

.footer-col h3 {
  margin: 0 0 var(--space-2);
  color: var(--text);
  font-family: "BebasNeue", Impact, sans-serif;
  letter-spacing: 0.02em;
  font-weight: 400;
  font-size: 1.75rem;
}

.footer-col p,
.footer-col ul {
  margin: 0;
  padding: 0;
  list-style: none;
}

.footer-col li + li {
  margin-top: var(--space-2);
}

.fine-print {
  border-top: 1px solid var(--hairline);
  padding-top: var(--space-4);
  font-size: var(--step--1);
}

@media (min-width: 52rem) {
  .bento-grid {
    grid-template-columns: repeat(3, minmax(0, 1fr));
  }

  .bento-card--training {
    grid-column: span 2;
  }

  .bento-card--articles {
    grid-column: 1 / -1;
  }

  .article-grid {
    grid-template-columns: repeat(3, minmax(0, 1fr));
  }

  .site-footer {
    grid-template-columns: repeat(3, minmax(0, 1fr));
  }

  .fine-print {
    grid-column: 1 / -1;
  }
}

@media (max-width: 42rem) {
  .site-shell {
    width: min(100% - 1.25rem, var(--max-width));
  }

  .topbar {
    flex-direction: column;
    align-items: flex-start;
  }

  .hero,
  .panel {
    padding: var(--space-5);
  }

  .stat-strip {
    grid-template-columns: 1fr;
  }

  .stat-strip p + p {
    border-left: 0;
    border-top: 1px solid var(--hairline);
  }
}

@media (prefers-reduced-motion: no-preference) {
  a,
  .button-primary,
  .bento-card,
  .article-card {
    transition: background-size var(--duration-fast) var(--ease-athletic),
      color var(--duration-fast) var(--ease-athletic),
      border-color var(--duration-fast) var(--ease-athletic),
      transform var(--duration-fast) var(--ease-athletic),
      background-color var(--duration-fast) var(--ease-athletic);
  }

  .button-primary:hover,
  .button-primary:focus-visible {
    background: transparent;
    color: var(--accent);
  }

  .bento-card:hover,
  .bento-card:focus-within,
  .article-card:hover,
  .article-card:focus-within {
    border-color: var(--accent);
    transform: translateY(-2px);
  }
}